IE55243B1 - Pharmaceutical formulations - Google Patents

Pharmaceutical formulations

Info

Publication number
IE55243B1
IE55243B1 IE1205/83A IE120583A IE55243B1 IE 55243 B1 IE55243 B1 IE 55243B1 IE 1205/83 A IE1205/83 A IE 1205/83A IE 120583 A IE120583 A IE 120583A IE 55243 B1 IE55243 B1 IE 55243B1
Authority
IE
Ireland
Prior art keywords
formulation
peg
pref
pseudomonic acid
salt
Prior art date
Application number
IE1205/83A
Other versions
IE831205L (en
Original Assignee
Beecham Group Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB838313036A external-priority patent/GB8313036D0/en
Application filed by Beecham Group Plc filed Critical Beecham Group Plc
Publication of IE831205L publication Critical patent/IE831205L/en
Publication of IE55243B1 publication Critical patent/IE55243B1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/335Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/35Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/06Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/08Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
    • A61K47/10Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/06Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/22Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0014Skin, i.e. galenical aspects of topical compositions

Abstract

Topical formulation contains pseudomonic acid (I) or its salt or ester and at least 1 wt.% of a poly (opt. substd. alkylene) glycol (II) or its deriv. Pref. salts of (I) are the alkali metal salts and pref. esters are the 1-4C alkyl esters. The formulation pref. contains 0.01-50 wt.% (I) (or salt or ester). Pref. (II) is polyethylene glycol (PEG) or its deriv. (esp. PEG 400 opt. contg. PEG 4000, glycofurol or cetomacrogol). The formulation may also contain antibacterial, antifungal, antiviral and/or antiinflammatory agents but pref. (I) is the sole therapeutic agent. Use amt. of (I) is esp. 0.5-10 (partic. 2) wt.%.S (I) is a known antibiotic (see GB1395907) useful for treating skin, ear and eye disorders by topical admin. (I) has improved stability in presence of (II). - [EP0095897A2]

Description

The present invention relates to pharmaceutical formulations, for topical use, which contain pseudomonic acid or a salt or ester thereof as sole therapeutic agent.
Pseudomonic acid, its salts and esters, are known antibiotic agents and are described in GB-A-1,395,907. These agents are useful in treating skin, ear and eye disorders by topical administration Various topical formulations of pse'udomonic acid have been produced but have not been sufficiently stable for commercial exploitation. It has now been surorisingiy found that, in the presence of polyethylene glycol, or a derivative thereof, pseudomonic acid has improved stability.
Accordingly, the preSent invention, provides a topical formulation comprising pseudomonic acid, or a salt or ester thereof and at least 1% by weight of a poly-substituted 6r unsubstituted alkylene - glycol or a derivative thereof. 3 As used herein the term 'poly -substituted or unsubstituted alkylene- glycol' refers to polymers having the following repeating unit " (CH2)n0 - wherein n is an integer, preferably 2 or 3 and to such polymers wherein one or more methylene groups of each repeating unit is substituted. Suitable substituents include alkoxy groups such as methoxy as in polyraethoxypropylene glycol. Such polymers are known by a variety of names, for instance when n = 2, as polyethylene glycol, polyoxyethylene, polyoxyethylene glycol and macrogol and, when n = 3, as polypropylene glycol, polyoxypropylene and polyoxypropylene glycol. All these are useful in the invention as are derivatives of these polymers.
Suitable derivatives include ethers and esters of the poly -substituted or unsubstituted alkylene -glycols, such as the macrogol ethers and esters, for instance cetomacrogol, glycofurol, the 'Tweens'1 and block copolymers including poly -substituted or unsubstituted alkylene - glycols such as Poloxamers which are block copolymers of polyethylene glycol and polypropylene glycol for instance the 'Pluronics'1, and cross-linked polyethylene glycol.
The poly -substituted or unsubstituted alkylene -glycols and derivatives thereof may be used singly or various grades and types may be used in combination to achieve the desired physical properties of the formulation.
'Tween' and 'Pluronic' are trade names for the above types of polymer. 4 Preferably the formulation comprises polyethylene glycol or a derivative thereof.
Suitably the formulation comprises from flilU to 50% by weight of pseudomonic acid or a salt or BStsr thereof, preferably 0.1 to 25%, more preferably t),5 to 10% and most preferably about 2% by weight sf pseudomonic acid or a salt or 98tet thereof, |HRh formulations comprising only pseudomonic acid or a %%lt or ester thereof and a poly -substituted’RC unsubstituted alkylene- glycol or derivative fhbfgof will, of course, contain up tp 99,99% pf the paly* substituted or unsubstituted alkyleng - glycol or derivative thepeqf, ;.
The formulation may comprise additional therapeutic agents such as antibacterial, antifungal, antiviral and antiinflammatory agents, for instance chlortetracycline, miconazole, idoxuridine and phenazone, provided that these are compatible with the pseudomonic acid or salt or ester thereof. Pseudomonic acid and its salts and esters tend to undergo a rearrangement reaction in the presence of acid and accordingly acidic agents are unlikely to be compatible with pseudomonic acid and its salts and esters.
In a particular aspect the invention provides a formulation as described above wherein pseudomonic acid, or a salt or ester thereof, is the sole thereapeutic agent.
In another aspect the invention provides a topical formulation comprising pseudomonic acid or a salt or ester thereof and at least 1% by weight of polyethylene glycol or a derivative thereof.
Polyethylene glycols (PEG'S) and derivatives thereof are commercially available in a variety of ' chain lengths and with a variety of consistencies, for instance:- Polyethylene Glycols:- Liquids Semisolids Hard Solids PEG 200 PEG 300 PEG 400 PEG 1000 PEG 1540 PEG 4000* PEG 6000 Polyethylene Glycol derivatives:- Derivative Chemical Composition Consistency Glycofurol Tetrahydrofurfuryl alcohol polyethylene glycol ether Liquid Tween 60 Polyoxyethylene Sorbitan monostearate Semi-solid Tween 80 Polyoxyethylene Sorbitan monooleate Liquid * PEG 4000 is the B.P. nomenclature for PEG with mean molecular weight of 3350. This material is also 20 known as PEG 3350 in U.S.P. nomenclature.
These may be used singly or admixed in suitable proportions to achieve the desired consistency of formulation. β The formulations of the present invention may be presented as, for instance, ointments, creams or lotions, eye ointments and eye or ear drops, impregnated dressings and aerosols, and may contain appropriate conventional additives such as preservatives, solvents to assist drug penetration and emollients in ointments and creams. The formulations may also contain compatible conventional carrierst such as cream or ointment bases and ethanol or oleyl aloQfopl for lotions. Such carriers may be present as Sypnt 1% up to S8% of the formulation. Kor^ usually they will form up to about 80% of the formulation.
Suitable salts of pseudomonic acid include alkali metal salts, especially sodium pseudomonate.
Suitable esters of pseudomonic acid include lower alkyl esters, especially methyl or ethyl pseudomonate.
! Preferably the therapeutic agent is pseudomonic acid.
Particularly suitable formulations according to the present invention comprise at least 1% by weight of PEG or a mixture of PEG'S, from 0 to 25% by weight of a PEG derivative or mixture of PEG derivatives and from 0.5 to 10% by weight of pseudomonic acid or a salt or ester thereof.
Preferably the pseudomonic acid or salt or ester thereof represents 1 to 5% of the formulation, most preferably about 2% of the formulation.
Formulations of the invention may be produced by conventional pharmaceutical techniques. Thus ointments and creams are conveniently prepared by melting and 7 mixing together the solid or semi-solid PEG's or PEG analogues or derivatives, and stirring in the therapeutic agent and any other ingredients. The product is then slowly cooled and filled into containers such as collapsible metal or plastic tubes.
Liquid preparations, such as ear and eye drops, are produced by dissolving the therapeutic agent in the liquid PEG's or PEG analogues or derivatives and the other ingredients are then added. The resulting solution or suspension is distributed into glass or plastic bottles or in single dose packs such as soft gelatin capsules which are then heat sealed.
If necessary the formulation may be milled at any suitable stage of the process.
A suitable sterilisation procedure may be included in the above processes if necessary. Alternatively raw materials are obtained in sterile conditions and the formulations are produced aseptically.
The invention will now be illustrated by the following Examples: 8 Example 1 Liquid Formulation Pseudomonic acid is dissolved in PEG 400 and the formulation adjusted, by addition Of further PEG 400, 5 to contain 2% by weight of pseudomonic acid, Example 2 Ointment Formulation PEG 400 * w/w 59 10 PEG 4000 39 Pseudomonic Acid 2 The formulation is produced by melting the mixture of PEG's and stirring in the pseudomonic acid.
Example 3 15 Lotion Formulation PEG 400 % w/w 74 Ethanol 24 Pseudomonic acid 2 Example 4 Drop Formulation % w/w PEG 400 74 Glycofurol 24 Pseudomonic acid 2 Example 5 Cetomacrogol emulsifying ointment Polyethylene glycol 200 Pseudomonic acid 1 ο Stability Test The stability o£ the formuiatiqns in Examples i and 2 was compared with that of pseudomonio alone by storing samples at either 3Q or 37°C for 13 months.
The amount of therapeutic agent remaining at 3 months and at the end of this period was assayed and is given in the Table: Formulation i remaining after 3 months 12 month» 30°c 37°C 30QC 37«fi Pseudomonic aqid 79 Pec1 Pec Pec Example 1 98 97 91 87 Example 2 100 90 92 89 Dec - melted with decomposition.

Claims (5)

1. 7. A formulation as claimed in any one of claims 1 to 6 comprising polyethylene glycol 400. 5
2. 8. A formulation as claimed in claim 7 additionally comprising polyethylene glycol 4000, glycofurol or cetomacrogol.
3. 9. A formulation as claimed in any one of claims 1 to 8 additionally comprising an anti-inflammatqfy agent.
4. 10. A process for producing a formulation ag defined in any one of claims 1 to 9 which process 10 comprises admixing pseudomonic acid or a salt Of ester thereof and liquid or molten poly-substituted or unsubstituted alkylene-glypol.
5. 11. A formulation as claimed in any one of claims 1 to 9 for use in treating the human or animal body. 15 12. A topical formulation as claimed in Claim 1, substantially as hereinbefore described with particular reference to the accompanying Examples. F. R. KELLY & CO., AGENTS FOR THE APPLICANTS.
IE1205/83A 1982-05-28 1983-05-23 Pharmaceutical formulations IE55243B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8215684 1982-05-28
GB838313036A GB8313036D0 (en) 1983-05-12 1983-05-12 Pharmaceutical formulations

Publications (2)

Publication Number Publication Date
IE831205L IE831205L (en) 1983-11-28
IE55243B1 true IE55243B1 (en) 1990-07-18

Family

ID=26282983

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1205/83A IE55243B1 (en) 1982-05-28 1983-05-23 Pharmaceutical formulations

Country Status (9)

Country Link
US (1) US4524075A (en)
EP (1) EP0095897B1 (en)
AU (1) AU555897B2 (en)
CA (1) CA1196284A (en)
DE (1) DE3378523D1 (en)
HK (1) HK21991A (en)
IE (1) IE55243B1 (en)
MY (1) MY100647A (en)
NZ (1) NZ204326A (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8428952D0 (en) * 1984-11-16 1984-12-27 Beecham Group Plc Formulations
GB8530796D0 (en) * 1985-12-13 1986-01-22 Beecham Group Plc Pharmaceutical composition
DE3613799C1 (en) * 1986-04-24 1987-09-03 Nattermann A & Cie Use of glycofurol to liquefy pharmaceutical preparations for filling in soft gelatin capsules
IE59628B1 (en) * 1986-06-26 1994-03-09 Beecham Group Plc Treatment of fungal infections
US5091379A (en) * 1989-08-31 1992-02-25 Du Pont Merck Pharmaceutical Company Topical antinflammatory compositions with minimal systemic absorption
DE3939492A1 (en) * 1989-11-29 1991-06-06 Mack Chem Pharm PHARMACEUTICAL PREPARATIONS
AU7880991A (en) * 1990-05-10 1991-11-27 Novo Nordisk A/S A pharmaceutical preparation containing n-glycofurols and n-ethylene glycols
US5397771A (en) * 1990-05-10 1995-03-14 Bechgaard International Research And Development A/S Pharmaceutical preparation
GB9026873D0 (en) * 1990-12-11 1991-01-30 Beecham Group Plc Novel compounds
US5594026A (en) * 1990-12-11 1997-01-14 Smithkline Beecham Group P.L.C. Polymorphs of crystalline mupirocin
GB9507825D0 (en) * 1995-04-18 1995-05-31 Wet Pieter M De Method of treatment
GB9616208D0 (en) 1996-08-01 1996-09-11 Smithkline Beecham Plc Novel Compounds
NZ334913A (en) * 1996-10-01 2001-03-30 Smithkline Beecham Plc Use of mupirocin (pseudomonic acid) for the manufacture of a medicament for the treatment of bacterial infections associated with colonisation of the nasopharynx by pathogenic organisms effective as a sprayable topical agent
CO4910145A1 (en) 1996-10-01 2000-04-24 Smithkline Beecham Corp USE
IL123143A (en) * 1998-02-02 2001-08-26 Agis Ind 1983 Ltd Pharmaceutical compositions containing mupirocin
TR200102234T2 (en) * 1999-02-03 2002-10-21 Biogal Gyogyszergyar Rt. Process for the preparation of pseudomonic acid A antibiotic by microbiological method
AU2231601A (en) * 1999-12-28 2001-07-09 Meiji Seika Kaisha Ltd. Vancomycin preparations
IL137363A (en) * 2000-07-18 2005-12-18 Agis Ind 1983 Ltd Pharmaceutical compositions containing mupirocin
US7439045B2 (en) * 2001-06-21 2008-10-21 TEVA Gyógyszergyár Zártkörúen Müködö Részvénytársaság pH controlled fermentation process for pseudomonic acid production
DE20220885U1 (en) * 2001-12-28 2004-06-24 BIOGAL Gyógyszergyár Rt. Crystalline and amorphous mupirocin calcium
CN101897662B (en) * 2002-07-23 2013-05-22 诺瓦提斯公司 Ophtalmic ointment composition comprising a drug, an ointment base and a solubilizing/dispersing agent
IL150907A (en) * 2002-07-25 2007-07-04 Stephan Cherkez Process for the preparation of stable amorphous calcium pseudomonate
CA2523651A1 (en) * 2003-05-01 2005-02-03 Replidyne, Inc. Antibacterial methods and compositions
US20050123575A1 (en) * 2003-12-03 2005-06-09 Eilon Asculai Spreadable compositions for topical use, an improved process of making same and methods of using same
DE602005019509D1 (en) * 2004-06-01 2010-04-08 Teva Gyogyszergyar Zartkoeruen PROCESS FOR THE PREPARATION OF THE AMORPHIC FORM OF A MEDICAMENT
WO2008018085A2 (en) * 2006-08-10 2008-02-14 Naveh Pharma (1996) Ltd. Compositions and methods for treating dermatological abscesses
US20100323998A1 (en) * 2007-08-06 2010-12-23 Glenmark Pharmaceuticals Ltd. Topical composition containing the combination of mupirocin and beclomethasone
US20110207768A1 (en) * 2010-02-24 2011-08-25 Quadrx Pharmaceuticals Pharmaceutical combination of antibacterial and antifungal cream
WO2016133471A1 (en) 2015-02-20 2016-08-25 Pharmacti̇ve İlaç Sanayi̇ Ve Ti̇caret A. Ş. A topical composition comprising mupirocin and dexpanthenol
CN110772479A (en) * 2019-11-20 2020-02-11 湖北人福成田药业有限公司 Mupirocin ointment and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL105672C (en) *
GB845823A (en) * 1957-09-19 1960-08-24 Sumitomo Chemical Co Stabilised compositions comprising therapeutic imine derivatives and the preparation thereof
GB1395907A (en) * 1971-06-12 1975-05-29 Beecham Group Ltd Antibiotics
GB1587058A (en) * 1976-06-15 1981-03-25 Beecham Group Ltd Oxiranylmethyltetrahydropyran derivatives
EP0029665B1 (en) * 1979-11-10 1984-02-01 Beecham Group Plc Antibacterial derivatives of monic acid, processes for their preparation and compositions containing them

Also Published As

Publication number Publication date
HK21991A (en) 1991-03-28
DE3378523D1 (en) 1988-12-29
NZ204326A (en) 1985-09-13
AU1488583A (en) 1983-12-01
EP0095897A3 (en) 1984-12-12
EP0095897A2 (en) 1983-12-07
US4524075A (en) 1985-06-18
AU555897B2 (en) 1986-10-16
EP0095897B1 (en) 1988-11-23
IE831205L (en) 1983-11-28
MY100647A (en) 1990-12-29
CA1196284A (en) 1985-11-05

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